An experimental and numerical study of the free roll decay motion for a vessel of the Italian Navy is presented. Experimentally both sea trials and model scale tests have been carried out; numerical analysis has been performed by means of unsteady RANS simulations. The focus is on the analysis of the roll motion coef-ficients (damping and period of oscillations) at di erent Froude and Reynolds numbers. To this aim, experiments and numerical simulations were carried out at di erent Froude and Reynolds numbers. Sea trials were carried out on the Italian Navy ship Comandante Bettica in the Mediterranean Sea, close to the coast of Sicily; models experiments were performed in the towing tank at INSEAN. Computations were carried out by means of an in-house unsteady RANS solver. Copyright © 2009 by The International Society of Offshore and Polar Engineers (ISOPE).
Experimental and numerical analysis of the roll decay motion for a patrol boat
Di Mascio A.;
2009-01-01
Abstract
An experimental and numerical study of the free roll decay motion for a vessel of the Italian Navy is presented. Experimentally both sea trials and model scale tests have been carried out; numerical analysis has been performed by means of unsteady RANS simulations. The focus is on the analysis of the roll motion coef-ficients (damping and period of oscillations) at di erent Froude and Reynolds numbers. To this aim, experiments and numerical simulations were carried out at di erent Froude and Reynolds numbers. Sea trials were carried out on the Italian Navy ship Comandante Bettica in the Mediterranean Sea, close to the coast of Sicily; models experiments were performed in the towing tank at INSEAN. Computations were carried out by means of an in-house unsteady RANS solver. Copyright © 2009 by The International Society of Offshore and Polar Engineers (ISOPE).Pubblicazioni consigliate
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